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Finding the Fourth Proportional to 119,653.54, 165,122.97 and 65,940.47

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Solution

The fourth proportional to 119,653.54, 165,122.97 and 65,940.47 is: 90,998.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,653.54 : 165,122.97 = 65,940.47 : x
  2. Step 2: Convert to fraction form
    119,653.54/165,122.97 = 65,940.47/x
  3. Step 3: Cross multiply
    119,653.54x = 165,122.97 × 65,940.47
  4. Step 4: Simplify right side
    119,653.54x = 10,888,286,249.60
  5. Step 5: Solve for x
    x = 10,888,286,249.60/119,653.54
  6. Step 6: Final answer
    x = 90,998.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.